You are here: Home > Products > SLN
  • SLN

    SLN SLN 3d
    SLN three screw pumps are designed to avoid any pulsation, to ensure a smooth operation and to reduce to the lowest level the acoustic emissions, reducing all costs of second noise reduction measures. The pulsation-free flow of SLN pumps, allows Settima screw pumps also in output condition management critical to applications such as precision hydraulic controls and fuel metering.

    SLN pump can be equipped with a magnetic coupling if required.

    Dry or submerged
    Esterno o sommerso
    20 - 25 - 32 - 40 - 45 - 55 - 60 - 70
    Free or submerged (totally or partially)
    Qualsiasi o sommersa (parzialmente o completamente)
    ISO 3019/2
    ISO 7500 PN 16/40
    Drive loading
    No axial or radial loads
    Nessun carico assiale o trasversale
    Shaft rotation
    Rotazione albero
    Clockwise (from shaft end) , (suitable also for counter clockwise rotation)
    Destra (disponibile anche per rotazione sinistra)
    From 4 up to 800 L/min
    Da 4 a 800 L/min
    Outlet Pressure
    Pressione di mandata
    Up to 40 bar
    Fino a 40 bar
    Inlet Pressure
    Pressione in aspirazione
    Min. -0.7 bar max. 3 bar(2)
    Fluids(3) | Fluidi(3) • Mineral oil HLP e HLVP
    • Ecologic fluids HETG, HEPG, HEE
    • Synthetic fluid or emulsion: HFA oil-water emulsion, HFB water-oil emulsion 40% of volume, HFC water/ glycole – water max 35 to 55%, HFDR phosphate ester
    • Lubrication high viscosity oils
    • Special synthetic fluid: MIL-H, SKYDROL,
    • Fuel oil: MGO, MDO, Low sulfur MDO and HFO
    • DMX (ISO8217), DMA, DMB, DMC, DMZ
    • Bunker oil, furnace oil, engines oil, heating oil, hydraulics oils DIN 51524
    • Oli minerali HLP e HLVP
    • Fluidi ecologici HETG, HEPG, HEE
    • Fluidi sintetici o emulsioni: HFA emulsione olio-acqua, HFB emulsione acqua-olio 40% dl volume, HFC acqua/glicole – acqua max 35 to 55%, HFDR phosphate ester
    • Olio ad alta viscosità per lubrificazione
    • Fluidi speciali sintetici: MIL-H, SKYDROL
    • Fuel oil: MGO, MDO, Basso livello di zolfo MDO e HFO
    • DMX (ISO8217), DMA, DMB, DMC, DMZ
    • Bunker oil, furnace oil, olio per motori, heating oil, olio idraulico DIN 51524
    From 1 up to 10.000 cSt(4)
    Da 1 fino a 10.000 cSt(4)

    Seals polymer (shaft, O-ring)
    Polimero guarnizioni (albero, anello di tenuta)

    NBR, FKM, EPDM (5)
    Seal type
    Tipo di guarnizioni
    Acoustic Emissions
    Emissioni Acustiche
    From 52 up to 68 db(A) at 2.950 rpm value based on ISO 4412 test procedure
    Da 52 fino a 68 db(A) a 2.950 rpm (ISO 4412 test)
    Pump Body
    Corpo Pompa
    Cast iron EN-GJL-250, EN-GJS-400-15
    Ghisa EN-GJL-250, EN-GJS-400-15

    Pump body (special applications)

    Corpo pompa (applicazioni speciali)

    Cast iron, steel. Hardened steel and stainless steel available on request

    Ghisa, acciaio. Acciaio temprato e acciaio inox su richiesta.

    Steel for main screw , idler cast iron
    Acciaio vite principale, ghisa viti secondarie
    Screws (special applications)
    Viti (applicazioni speciali)
    Core hardened steel screws, surface treated screws
    Viti in acciaio temprato, viti trattate superficialmente
    Environment Temperature
    Temperatura Ambiente
    From - 50 ° up to + 100°C (6)
    Da - 50 ° a + 100°C (6)
    Hydraulic Temperature
    Temperatura Olio
    From - 50° C up to + 300° C (6)
    Da - 50° C a + 300° C (6)
    Permissible degree of fluid contamination NAS to 1638 class 10 or ISO DIS 4406 – 19/16. Recommended filtration ß 25 ≥ 75
    Contaminazione NAS tipo 1638 classe 10 o ISO DIS 4406 – 19/16 . Filtrazione raccomandata ß 25 ≥ 75
    (1)For shaft speed lower than 1.000 rpm and over 1.800 rpm please contact Settima.
    Per velocità inferiori a 1.000 rpm e maggiori di 1.800 rpm contattare Settima.
    (2)For higher pressure please contact Settima.
    Per pressioni maggiori contattare Settima.
    (3)For request of different fluids please contact Settima.
    Per l’utilizzo di diversi fluidi contattare Settima.
    (4)For level of viscosity lower than 20 cSt and over 320 cSt please contact Settima.
    Per livelli di viscosità inferiori a 20 cSt a superiori a 320 cSt contattare Settima.
    (5)For special seals please contact Settima.
    Per tenute speciali contattare Settima.
    (6)For higher/lower temperature please contact Settima.
    Per temperature superiori/inferiori contattare Settima.
  • Applications





    Oil & Gas


    Power Generation


    High Flow

    No Noise

    Low Viscosity

    Fuel Oils

    Dirty Fluids



    Please insert your email address to download pdf.

The materials on this website are, in whole or in part, protected and are proprietary of Settima Meccanica S.r.l. based in via E. Berlinguer 20, 29020 Settima (PC) including, as non-exhaustive examples, the brand names, trademarks, domain names, designs and patterns, patents and copyrights,. All rights therein are internationally reserved.

All brand names, trade names, logos, designs and other distinctive marks reproduced in this website, even if not registered, are trademarks of Settima Meccanica S.r.l. All domain names used in this website and / or in the websites connected to this one, belong to, or are authorized by, Settima Meccanica, which owns their whole management at international level.